1、Designation: B618/B618M 181Standard Specification forAluminum-Alloy Investment Castings1This standard is issued under the fixed designation B618/B618M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last revision. A nu
2、mber in parentheses indicates the year of last reapproval.A superscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1NOTEFootnote C of Table 3 was revised editorially in August 20
3、18.1. Scope*1.1 This specification covers aluminum-alloy investmentcastings designated as shown in Table 1.1.2 This specification is for aluminum-alloy investmentcastings used in general purpose applications. It may notaddress the mechanical properties integrity testing and verifi-cation required fo
4、r highly loaded or safety critical applications.1.3 Alloy and temper designations are in accordance withANSI H35.1/H35.1 (M).1.4 Unless the order specifies the “M” specificationdesignation, the material shall be furnished to the inch-poundunits.1.5 For acceptance criteria for inclusion of new alumin
5、umand aluminum alloys and their properties in this specification,see Annex A1 and Annex A2.1.6 UnitsThe values stated in either SI units or inch-pound units are to be regarded separately as standard. Thevalues stated in each system may not be exact equivalents;therefore, each system shall be used in
6、dependently of the other.Combining values from the two systems may result in noncon-formance with the standard.1.7 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safe
7、ty, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.8 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of
8、International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 The following documents of the issue in effect on thedate of purchase form a part of this specification to the extentreferenced herein:2.2
9、 ASTM Standards:2B179 Specification for Aluminum Alloys in Ingot and Mol-ten Forms for Castings from All Casting ProcessesB275 Practice for Codification of Certain Zinc, Tin and LeadDie CastingsB557 Test Methods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy ProductsB557M Test Met
10、hods for Tension Testing Wrought and CastAluminum- and Magnesium-Alloy Products (Metric)B660 Practices for Packaging/Packing of Aluminum andMagnesium ProductsB666/B666M Practice for Identification Marking of Alumi-num and Magnesium ProductsB881 Terminology Relating to Aluminum- and Magnesium-Alloy P
11、roductsB917/B917M Practice for Heat Treatment of Aluminum-Alloy Castings from All ProcessesB985 Practice for Sampling Aluminum Ingots, Billets, Cast-ings and Finished or Semi-Finished Wrought AluminumProducts for Compositional AnalysisD3951 Practice for Commercial PackagingE29 Practice for Using Sig
12、nificant Digits in Test Data toDetermine Conformance with SpecificationsE34 Test Methods for Chemical Analysis of Aluminum andAluminum-Base Alloys (Withdrawn 2017)3E94 Guide for Radiographic Examination Using IndustrialRadiographic FilmE155 Reference Radiographs for Inspection of Aluminumand Magnesi
13、um Castings1This specification is under the jurisdiction of ASTM Committee B07 on LightMetals and Alloys and is the direct responsibility of Subcommittee B07.01 onAluminum Alloy Ingots and Castings.Current edition approved May 15, 2018. Published May 2018. Originallyapproved in 1977. Last previous e
14、dition approved in 2014 as B618/B618M 14.DOI: 10.1520/B0618_B0618M-18E01.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe A
15、STM website.3The last approved version of this historical standard is referenced onwww.astm.org.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United StatesThis international standar
16、d was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.1TABLE1Ch
17、emicalCompositionRequirementsA,B,C,DDesigJSiFeCuMnMgCrNiZnTiAgBePbSnZrFNsOthersEAl.Min.EachTotalF201.00.100.154.05.20.200.500.150.55.0.150.350.401.0.0.050.10Rem.204.00.200.354.25.00.100.150.35.0.050.100.150.30.0.05.0.050.15Rem.242.00.71.03.54.50.351.21.80.251.72.30.350.25.0.050.15Rem.295.00.71.51.04
18、.05.00.350.03.0.350.25.0.050.15Rem.319.05.56.51.03.04.00.500.10.0.351.00.25.0.50Rem.328.07.58.51.01.02.00.200.60.200.60.350.251.50.25.0.50Rem.355.04.55.50.6G1.01.50.50G0.400.60.25.0.350.25.0.050.15Rem.C355.04.55.50.201.01.50.100.400.6.0.100.20.0.050.15Rem.356.06.57.50.6G0.250.35G0.200.45.0.350.25.0.
19、050.15Rem.A356.06.57.50.200.200.100.250.45.0.100.20.0.050.15Rem.A443.04.56.00.80.300.500.050.25.0.500.25.0.35Rem.B443.04.56.00.80.150.350.05.0.350.25.0.050.15Rem.514.00.350.500.150.353.54.5.0.150.25.0.050.15Rem.520.00.250.300.250.159.510.6.0.150.25.0.050.15Rem.535.00.150.150.050.100.256.27.5.0.100.2
20、5.0.0030.007.0.005B.0.050.15Rem.705.00.200.80.200.400.61.41.80.200.40.2.73.30.25.0.050.15Rem.707.00.200.80.200.400.61.82.40.200.40.4.04.50.25.0.050.15Rem.710.0I0.150.500.350.60.050.60.8.6.07.00.25.0.050.15Rem.712.0I0.300.500.250.100.500.65H0.400.6.5.06.50.150.25.0.050.20Rem.713.00.251.10.401.00.60.2
21、00.500.350.157.08.00.25.0.100.25Rem.771.00.150.150.100.100.81.00.060.20.6.57.50.100.20.0.050.15Rem.850.00.70.70.71.30.100.10.0.71.3.0.20.5.57.0.0.30Rem.851.0I2.03.00.70.71.30.100.10.0.30.7.0.20.5.57.0.0.30Rem.852.0I0.400.71.72.30.100.60.9.0.91.5.0.20.5.57.0.0.30Rem.AWhensingleunitsareshown,theyindic
22、atethemaximumamountspermitted.BAnalysisshallbemadefortheelementsforwhichlimitsareshowninthistable.CThefollowingappliestoallspecifiedlimitsinthistable:Forpurposesofdeterminingconformancetotheselimits,anobservedvalueoracalculatedvalueobtainedfromanalysisshallberoundedtothenearestunitinthelastright-han
23、dplaceoffiguresusedinexpressingthespecifiedlimitinaccordancewiththerounding-offmethodofPracticeE29.DIncaseofdiscrepancybetweenthevalueslistedinTable1andthoselistedinthe“DesignationsandCompositionLimitsforAluminumAlloysintheFormofCastingsandIngot(knownasthePinkSheets),”thecompositionlimitsregisteredw
24、iththeAluminumAssociationandpublishedinthe“PinkSheets”shallbeconsideredthecontrollingcomposition.E“Others”includeslistedelementsforwhichnospecificlimitisshownaswellasunlistedmetallicelements.Theproducermayanalyzesamplesfortraceelementsnotspecifiedinthespecification.However,suchanalysisisnotrequireda
25、ndmaynotcoverallmetallic“Others”elements.Shouldanyanalysisbytheproducerorthepurchaserestablishthatan“Others”elementexceedsthelimitof“Each”orthattheaggregateofseveral“Others”elementsexceedsthelimitof“Total,”thematerialshallbeconsiderednonconforming.FOtherElementsTotalshallbethesumofunspecifiedmetalli
26、celements0.010%ormore,roundedtotheseconddecimalbeforedeterminingthesum.GIfironexceeds0.45%,manganesecontentshallnotbelessthanonehalfoftheironcontent.HTheAluminumAssociationrulingonthenumberofdecimalplacestowhichMgpercentisexpressedisexemptedforsomelongstandingalloys.SeeA2.2.6.I710.0formerlyA712.0,71
27、2.0formerlyD712.0,851.0formerlyA850.0,852.0formerlyB850.0.JForacrossreferenceofcurrentandformeralloydesignationsseetheAluminumAssociations“DesignationsandChemicalCompositionLimitsforAluminumAlloysintheFormofCastingsandIngot(ThePinkSheets).”B618/B618M 1812E165 Practice for Liquid Penetrant Examinatio
28、n for GeneralIndustryE607 Test Method for Atomic Emission SpectrometricAnalysis Aluminum Alloys by the Point to Plane Tech-nique Nitrogen Atmosphere (Withdrawn 2011)3E716 Practices for Sampling and Sample Preparation ofAluminum and Aluminum Alloys for Determination ofChemical Composition by Spark At
29、omic Emission Spec-trometryE1251 Test Method for Analysis of Aluminum and Alumi-num Alloys by Spark Atomic Emission SpectrometryE2422 Digital Reference Images for Inspection of Alumi-num CastingsIEEE/ASTM SI 10 Standard for Use of the InternationalSystem of Units (SI): The Modern Metric System2.3 AN
30、SI Standard:4H35.1/H35.1 (M)-2006 American National Standard Alloyand Temper Designation Systems for Aluminum2.4 Military Standards:5MIL-STD-129 Marking for Shipment and StorageMIL-STD-276 Impregnation of Porous Nonferrous MetalCastings2.5 Federal Standard:Fed. Std. No. 123 Marking for Shipment (Civ
31、il Agencies)52.6 AMS Standard:6AMS 2771 Heat Treatment of Aluminum Alloy Castings2.7 NAVSEA Standard:7S9074-AR-GIB-010/278 Requirements for FabricationWelding and Inspection, and Casting Inspection andRepair for Machinery, Piping, and Pressure Vessels2.8 Aluminum Association Standard:4Designations a
32、nd Chemical Composition Limits for Alumi-num Alloys in the Form of Castings and Ingot (The PinkSheets)2.9 Other Standards:8CEN EN 14242 Aluminum and Aluminum AlloysChemical AnalysisInductively Coupled Plasma OpticalEmission Spectral Analysis3. Terminology3.1 DefinitionsRefer to Terminology B881 for
33、definitionsof product terms used in this specification.3.2 Definitions of Terms Specific to This Standard:3.2.1 investment casting, na metal object produced bysurrounding (investing) an expendable pattern (usually wax orplastic) with a refractory slurry that sets at room temperature,after which the
34、pattern is removed through the use of heat, andthen filling the resulting cavity with molten metal and allowingit to solidify.4. Ordering Information4.1 Orders for material under this specification shall includethe following information (1.4 and 1.6):4.1.1 This specification designation (which inclu
35、des thenumber, the year, and the revision letter, if applicable),NOTE 1For inch-pound application, specify Specification B618 andfor metric application specify Specification B618M. Do not mix units.4.1.2 Alloy (Section 7 and Table 1),4.1.3 Temper (Section 10 and Table 2 Table 3),4.1.4 Applicable dra
36、wing or part number, and4.1.5 The quantity in either pieces or pounds kilograms.4.2 Additionally, orders for material to this specificationshall include the following information when required by thepurchaser:4.2.1 Whether chemical analysis and tensile property re-ports are required (Table 1 and Tab
37、le 2 Table 3),4.2.2 Whether castings, test specimens, or both may besupplied in the artificially aged T5 temper for alloys 705.0,707.0, 712.0, and 713.0 (10.2),4.2.3 Whether test specimens cut from castings are requiredin addition to or instead of separately cast specimens (10.3 and11.2),4.2.4 Wheth
38、er heat treatment is to be performed in accor-dance with AMS 2771 (Section 15),4.2.5 Whether repairs are permissible (16.1),4.2.6 Whether inspection is required at the producersworks (18.1),4.2.7 Whether surface requirements shall be checkedagainst observational standards where such standards areest
39、ablished (19.1),4.2.8 Whether liquid penetrant inspection is required (19.3),4.2.9 Whether radiographic inspection is required and, if so,the radiographic grade of casting required (19.4 and Table 4),4.2.10 Whether certification is required (21.1),4.2.11 Whether foundry control is required (Section
40、9),4.2.12 Whether Practices B660 apply and, if so, the levels ofpreservation, packaging, and packing required (24.4), and4.2.13 Whether marking in accordance withFed. Std. No. 123, Practice D3951, or MIL-STD 129 applies(24.4).5. Responsibility for Quality Assurance5.1 Responsibility for Inspection a
41、nd TestsUnless other-wise specified in the contract or purchase order, the producershall be responsible for the performance of all inspection andtest requirements specified herein. Except as otherwise speci-fied in the contract or order, the producer may use his own orany other suitable facilities f
42、or the performance of the inspec-tion and test requirements specified herein, unless disapprovedby the purchaser. The purchaser shall have the right to performany of the inspections and tests set forth in this specificationwhere such inspections are deemed necessary to confirm thatmaterial conforms
43、to prescribed requirements.4Available from Aluminum Association, Inc., 1400 Crystal Drive Suite 430Arlington, VA 22202, http:/www.aluminum.org.5Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:/www.dodssp.daps.mil.6Av
44、ailable from Society of Automotive Engineers (SAE), 400 CommonwealthDr., Warrendale, PA 15096-0001, http:/www.sae.org.7Available from Naval Sea Systems Command (NAVSEA), 1333 Isaac HullAve., SE, Washington, DC 20376, http:/www.navsea.navy.mil.8Available from European Committee for Standardization (C
45、EN), 36 Rue deStassart, B-1050, Brussels, Belgium, http:/www.cenorm.be.B618/B618M 18136. Materials and Manufacture6.1 The responsibility of furnishing castings that can be laidout and machined to the finished dimensions within thepermissible variations specified, as shown on the blueprints ordrawing
46、s, shall rest with the producer, except where patternequipment is furnished by the purchaser.6.1.1 Unless otherwise specified, only aluminum alloy con-forming to the requirements of Specification B179 or produc-ers foundry scrap (identified as being made from alloyconforming to Specification B179) s
47、hall be used in the remelt-ing furnace from which molten metal is taken for pouringTABLE 2 Tensile RequirementsA,B(Inch-Pound Units)DesignationETemperCTensileStrength,min, ksiYield Strength(0.2 % offset)min, ksiElongation in2 in. or 4diameter,min, %TypicalBrinellHardness,D500 kgf, 10 mm201.0 T6 60.0 50.0 5.0 . . .T7 60.0 50.0 3.0 . . .204.0 T4 45.0 28.0 6.0 . . .T6 30.0FF115242.0 OG23.0 70T61 32.0 20.0F105295.0 T4 29.0 13.0 6.0 60T6 32.0 20.0 3.0 75T62 36.0 28.0F95T7 29.0 16.0 3.0 70319.0 F 23.0 13.0 1.5 70T6 31.0 20.0 1.5 8
